Why Does Sweat Smell

Sweat doesn’t smell. It’s a clear, odourless liquid mostly made up of water, salt, proteins and oils. The smell that we call ‘body odour’ is actually caused by bacteria.

Our body is home to millions of harmless bacteria that help the skin’s natural defense. They survive and grow in moist, humid and nutrient-rich environments – just like our armpit areas. Bacteria feed on our sweat and metabolise it, producing byproducts that have a very distinctive smell – like vinegar, cheese or onion.

What causes body odour – or BO – are the excretions from the bacteria that feed on your sweat. This is a totally natural process that starts during puberty.

How do I stop body odour?

Smelly armpits and bad body odour aren’t harmful to your health, but we all know they can sometimes cause embarrassment. Making a few changes to your daily routine can improve your body odour.